View Compilation Error

0_0_33979813_2589.cpp:165:1: error: 'll' does not name a type
 ll z[11111];
 ^
0_0_33979813_2589.cpp:166:28: error: 'll' has not been declared
 void add(int a,int b,int c,ll d) {
                            ^
0_0_33979813_2589.cpp: In function 'void add(int, int, int, int)':
0_0_33979813_2589.cpp:171:2: error: 'z' was not declared in this scope
  z[top]=d;
  ^
0_0_33979813_2589.cpp: In function 'int main()':
0_0_33979813_2589.cpp:201:58: error: 'z' was not declared in this scope
   for (int i=1; i<=top; ++i) mcf.add_edge(u[i],v[i],w[i],z[i]);
                                                          ^